Pendulum clock



P. LUX

PENDULUM CLOCK Sept. 26, 1933.

Filed Jan.. 19, 1928 INVENTOR Pa 11 l L aw ATTORN Patented Sept. 26, 1933 PENDULUM CLOCK Paul Lux, Waterbury, Conn., assignor to The Lux Clock Manufacturing Company, Waterbury, Conn., a corporation of Connecticut Application January 19, 1923. Serial No. 247,867

2 Claims.

This invention relates to a pendulum-operated clocks, and more particularly to a clock in which the pendulum has a slidable bob adapted to be frictionally held in any desired adjusted position along the length thereof.

The objects of this invention are to provide a device of the above nature which will be simple in construction, inexpensive to manufacture, easy to manipulate, ornamental in appearance, and very efficient and durable in use.

With these and other objects in view there has been illustrated on the accompanying drawing one form in which the invention may be conveniently embodied in practice.

Fig. 1 represents a side view of a clock, partly in section, upon which the invention has been installed.

Fig. 2 is a front view of the pendulum unit.

Fig. 3 is a rear View on an enlarged scale of the lower part of the pendulum and pendulum bcb.

Fig. 4 is a side sectional view of the same.

Referring now to the drawing in which like reference numerals denote corresponding parts throughout the several views, the numeral 10 indicates a clock casing having a bracket member 11 attached to the rear thereof, by means of which the clock may be suspended from a hook or any other suitable support. At the lower part of the clock provision is made of a horizontal pendulum shaft 12 having reduced pins 13 and 14, said pins being journaled in the movement plates 15 and 16, as clearly shown in Fig. 1.

The pendulum shaft 12, intermediate its ends, carries a collar 17 having its upper edge slotted for successive engagement by the teeth of a ratchet wheel 18, whereby power from the main spring of the clock will be transmitted to said shaft 12 for oscillating a pendulum consisting of a rod 19 and a circular bob 20.

The pendulum rod 19 is preferably rectangular in cross-section and formed by stamping out of sheet metal. The pendulum rod 19 has an en larged circular upper end 21 extending rearwardly from which is a tubular member 22 rigidly mounted on the pendulum shaft 12 near the rear plate 15. The pendulum rod 19 extends downwardly through an arcuate cut-out portion 23 formed in the bottom of the clock casing 10, and has its lower extremity 24 pointed for a purpose to be hereinafter described.

The pendulum bob 20 comprises a convex front plate 25 having a flange 26 on its periphery, said fiange being bent rearwardly and inwardly for engaging the periphery of a convex rear plate 27.

In order to permit the pendulum rod 19 to be inserted in the bob 20, the flange 26 has a pair of oppositely disposed slots 28 at its upper and lower portions, said slots 28 being in alinement with a pair of rectangular recesses 29 and 30 located in the top and bottom edges respectively of the extending substantially to the center of said rear plate 27.

In order to permit the pendulum bob 20 to be frictionally held in any desired adjusted position along the length of the pendulum rod 19, provision is made of a downwardly extending spring finger 31 formed from the metal of the rear plate 27 and located within the lower recess 30. The lower end 32 of the finger 31 is bent inwardly and then outwardly so as to form a curved spring portion at the point of engagement with the pen dulum rod 19.

In operation, when it is desired to assemble the pendulum bob 20 upon the pendulum rod 19, the pendulum bob will be located below the pendulum rod with the upper slot 28 and the recess 29 in alinement with the pointed lower end 24 of the pendulum rod. The pendulum bob 20 will then be pushed upwardly to any desired ad justed position on the pendulum rod 19 where it Will be frictionally maintained by the pressure of the spring finger 31 upon the pendulum rod 19.

It will be understood that in the above operation the oppositely convexed front and rear plates will facilitate the passage of the point 24 of the pendulum rod 19 through the pendulum bob 20.

While there has been disclosed in this specification one form in which the invention may be embodied, it is to be understood that this form is shown for the purpose of illustration only, and that the invention is not to be limited to the specific disclosure but may be modified and embodied in various other forms without departing from its spirit. In short, the invention includes all the modifications and embodiments coming within the scope of the following claims.

Having thus fully described the invention, what is claimed as new, and for which it is desired to secure Letters Patent, is:

1. In a clock pendulum, a pendulum rod having an integral horizontal tubular member at its upper end for rigid mounting on a horizontal oscillating clock shaft, said rod being stamped from sheet metal.

2. In a clock having a pointed pendulum rod of fiat cross-section, a bob adapted to be frictionally and slidably mounted on the pendulum comprising a rearwardly flanged front plate, a rear plate held within the flange of said front plate, said rear plate having a spring tongue for engaging said rod, said front plate being dished to provide a concave inner surface, said flange and said rear plate having upper and lower slots fitted about said rod, the concave inner surface of said front plate being adapted to guide the pointed end of said rod when said rod is being passed through said bob.

PAUL LUX.

convex rear plate 27, the lower recess 30, 

